Yarn-transfer mechanism



Jan. 27, 1948. M. J. RARICK YARN-TRANSFER MECHANISM Filed July 26, 1946'6 Sheets-Sheet l INVENTOR.

' Ban ATTORNEY Jan. 27, 1948. J cK 2,434,964

YARN TRANSFER MECHAN 1 SM Filed July 25, 1946 5 Sheets-Sheet z g uvmvronORGAN 41 RAR/cK ,ATZ' ORMEY.

ha. 2?, 194%., M. J. RARICK YAHN- TRANS FER MECHANI SM Filed July 26,1946 6 Sheets-Sheet 3 IN V EN TOR.

'MORGANURAR/CA BY %./%zw

ATTORNEX Jan. 27, 19458. M, RA ICK 2,434,964

YARN- TRANSFER MECHANI SM Filed Jul y 26, 1946 e Sheets-Sheet 4 100 30106 INVENTOR. 102' 3 MO/PG/WL/ RA/Q/cK v Afro/MEX Jan. 27, 1948.

M. J. 'RARICK I YARN-TRANSFER MECHANISM Filed July 26, 1945 6Sheets-Sheet 5 Mmizwez sck ATTORNEX atented Jan. 27, 1948 -UNiTED STATESPATENT OFFICE YARN-TRANSFER MECHANISM Morgan 1. Rarlck, Buflalo, N. Y.,assignor to E. I. du Pont de Nemours & Company, Wilmington, Del, acorporation of Delaware Application July 26, 1946, Serial No. 686,395 YClaims. (01. 28-715) 1 This invention relates to a new and improvedapparatus for transferring yarn from an element where the yarn is at apositive te'nsionlevel to an element where the yarn assumes a subneouslytransferring a plurality of -yams and which permits the removal of thewrapping of one or more yarnswithout interrupting the continuity of theoperation.

Other and additional objects .will become apparent hereinafter.

The objects of the invention are accomplished, in general, by rotatablymounting a plurality of small individual fluted rolls on the peripheryof a large rotatable wheel in such a manner that some of thefluted rollsare positively driven and some are stationary. The driving mechanism forthe small fluted rolls is so constructed that the top rolls arepositively driven while the bottom rolls are stationary. The drivenfluted rolls include those which receive the plurality of yarns in theform of a warp sheet and advance them through the mechanism to thefluted roll from which the yarns are discharged. The fluted roll fromwhich the yarns aredischarged is also driven and the point of dischargeof the yarns is that at which a line tangent thereto is perpendicular tothe floor so that the yarns upthe , 2 a rupted. While in the stationaryposition, the

- wrap is removed from the roll on which it de- Figure 2;

on discharge will descend in a vertical path to e the collection device.

Normally, during the transfer of the yarns by the fluted rolls abovedescribed, the rotatable wheel is stationary. When, however, a wrapdevelops on one of the rotating small fluted rolls,-

the wheel is rotated to a position wherein the roll on which the wraphas developed is stationary. The rotation of the wheel also advancesone-or more of the fluted rolls which were previously in the inoperativestationary position into operative (rotating) position. During theremoval of the roll on which the wrap developed from operative toinoperative position, the continuity of the veloped also withoutinterrupting the continuity of the operation of the mechanism withrespect to the other yarns.

Means cooperating with each of the fluted rolls are provided towarn theoperator when a wrap has developed. In one form, such means compriseelectrodes positioned in close, but spaced, proximity to the peripheryof each fluted roll. Upon the development of a wrap, the electrodesactuate an electronic relay which, in turn, operates a, visible oraudible signal to warn the operator. Alternatively, the electronic relaycan be attached to-a motor starter, whereby upon development of a wrapthe wheel will be automatically rotated to move the roll having the wrapfrom operative to inoperative position.

The details of the invention will be more clearly apparent by referenceto the following detailed description when taken in conjunction with theaccompanying drawings, wherein:

Figure 1 is a diagrammatic elevation showing the yam-transfer mechanismin position to receive the yarns under a positive tension fromprocessing rolls and deliver said yarns onto a yarn-collecting devicewhere the yarns assume substantially zero tension;

Figure 2 i a side view, partly in section, oi the transfer mechanism;

Figure 3 is a section taken on the line 3-3 of Figure 4 is a sectiontaken on the line 44 of Figure 2;

Figure 5 is an end view, partly broken away I and looking to the rightin Figure 2; I

t Figure 6 is a section of the end bearing and seal of the fluted roll;

Figure 7 is a cross-section of the electrode bearing and also shows aportion of an electrode v in section;

Figure 8 is a vertical section of one form of Figure 10; Figure 12 is aside elevation of still another form of fluted roll;

Figure 13 is a section taken on the line I 3-43 of Figure l2; w

Figure 14 is a wiring diagram of a circuit in cluding a visible oraudible signal to warn the operator of the development of a wrap; and

Figure 15 is a wiring diagram of a modified construction.

Referring now to the drawings, wherein like reference numerals designatelike parts, and particularly to Figure 1, the reference numeral Idesignates a plurality of wet rayon yarns arranged in spaced parallelrelationship to form a warp sheet being drawn from a series ofstretching rolls, on which each yarn has been subjected to high tension,by positively driven rolls I0, I6 and I8. The warp sheet I0 isdelivwheel which is rotatably mounted and will be one of'which is shown,and conveys the yarns for further processing, such as washing andpurification. In the form shown, the surface of the belt 22 whichreceives the yarn is horizontal and parallel to the floor. The speed oftravel of the belt 22 is such that no tension will be imposed on thefreely-falling yarns. Consequently, each of the yarns collected on thebelt 22 assumes a substantially zero tension level.

'The yarn-transfer mechanism comprises a plurality of small fluted roll39 arranged in a squirrel cage assembly. All of the fluted rolls 30 areof identical construction and each roll 30 is secured to its respectiveshaft 32. The shafts 32 are mounted identically in the mechanism, andhence the mounting of one shaft 32 will be described in detail.

The rear end of shaft 32 is rotatably mounted in a rear bearing,generally designated by the reference numeral 34 and carried on a rearbearin support 36 which, in turn, is secured on a hub 38. The front endof each shaft 32 is rotatably mounted in an individual front bearing,generally designated by the reference numeral '40. Each of the frontbearings 40 is carried in a separate section 02, which is securedadjacent the bottom thereof to a central flange 04.

As shown in Figures 3 and 5, each section 42 is in the form of atrapezoid, and thesections 42 are arranged so that the side edges of ad-Jacent sections are in abutting relationship with the smaller basesdisposed on the central flange 04. A gusset 46 is positioned over eachof the joints formed by the abutting edges of adjacent sections 42, and,by means of bolts 58, join the adjacent sections 42 together.

The central flange M is secured to the hub 38 which extends transverselyof the mechanism. At the rear end (see Figure 2), thehub is secured to ashaft 50, which is operatively connected to means whereby it is drivenin a manner hereinafter more fully explained. The shaft 50 is rotatablymounted in a bearing 54 carried by a bearing support 56 appropriatelymounted in the machine.

The hub 38 at the front end of the mechanism is secured to a shaft 60,which is 'rotatably mounted in a bearing 62' carried on a channel ironframe 64. The front end of the device is protected by a guard plate 5|.It is to be noted that the upper half of the guard plate Si is removablybolted to the channel 64. When removed from position, any of the rolls30 exposed thereby can be removed as a unit as will hereafter be morefully explained.

The hub 38, together with the rear bearing supports 38 and the centralflang 44 to which rotated when rotary movement is imparted to the shaft50. Upon rotation of the wheel, the

fluted rolls 30 which are mounted in the pcriphery of the wheel will berevolved and thus advanced to different positions along the periphery.

Each of the shafts 32 ofeach-of the rolls 30 is provided at the rear endthereof with an individual sheave I0. A belt I2, driven as here-', afterexplained, passes over onlycertain of the sheaves T0 to impart rotarymotion thereto. Rotation of such sheaves will be transmitted to therespective shafts 32 on which they are mounted and the rotation of suchshafts will be imparted to the respective rolls 30 carried thereon. Thesheaves over which the belt [2 does not pass remain stationary, andhence the rolls on the shafts 32 which carry such rolls also remainstationary. 1

In the form shown (see Figure 4) eight fluted rolls 30 are mounted inthe periphery of the-wheel and the belt 12 is so positioned that it willrotate five of the rolls while three of the rolls are stationary. Asshown in Figure 4, the rolls which are rotated are in substantially theupper half of the wheel.

The belt I2 is driven by a sheave 76 secured on a shaft I8 continuouslydriven by any suitable means (not shown). Means are also provided totake up any slack in the belt 12. In the form shown, thi is secured by abelt-tightening roll 82 continuously engaging the inner surface of thebelt 72. The roll 82 is rotatably mounted on a stud 04 carried at oneend of a link 86 of a bell-crank lever. The bell-crank lever is providedwith a boss 88 through which the shaft I8 extends and on which thebell-crank lever is pivotally disposed. The other arm 90 of thebellcrank lever is secured at the end thereof, as at 92, to one end of aspring 94. The other end of the spring 94 is secured to a fixed support95 carried on an I-beam 96 appropriately positioned in the machine. Asis apparent, the length of the link 86 determines to a certain extent,the number of sheave which will cooperate with the belt drive l2.

It will be apparent that, due to'the tension of the spring 94, the roll82 will be continuously urged against the belt I2 and serve as a belttightener.

The fluted roll drive mechanism is enclosed in a housing 96'. The innerend of the housing is provided with an annular hannel 91 into which therear bearing support 36 extends. The channel 91 receives the liquidwhich may pass from the yarn. A drain 98 permits removal of such liquidfrom the channel. The housing is also provided with a drain 99.

The rear and front bearings 34 and 40 are subthreaded portion I06 of theshaft 32. The nut I04 is seated on a washer I08 and is locked inposition by means of a star lock III). A key slot II2 alsoaids insecuring the nut I04 and the washer I88 in position. The rotatablemember I82 is provided with an annular groove formed between flanges II4and Ill and into which a flange I I8 of the non-rotatable member I I8 ofthe seal extends. The non-rotatable member H8 is provided with anannular groove formed by the flange H8 and a flange III, and the flangeII5 of the rotatable member I82 extends therein. The non-rotatablemember H8 is carried by the section 42. The bearing is of theball-bearing self-aligning type and is generally designated by thereference numeral I22. The bearing housing I24, the se ment 42 and thenon-rotatable member II8 of the seal are secured together by screws I28.A grease cup I25 permits greasing of the bearing. A retaining ring I88is secured to the shaft by means of the set screw I82-and aids inmaintaining the bearing in position. A guard I34 is secured to thebearing housing I24 by means of a set screw I38.

In the preferred form, compressed air is utilized for scavenging thebearing and seal of moisture-filled air which might cause corrosion. Inthe form shown, this is obtained by continuously feeding compressed air(supplied in any convenient manner at the operator's end of theapparatus) to a drilled passage I21 in the shaft 32. The passage I21communicates through a passage I28 to the passage I28 whichis connectedto an outlet pipe I3I.

The construction of the bearing and seal just described is that at thefront of the machine. The hearing at the rear of the machine isidentical in construction, except that it is secured to the bearingsupport 38 instead of the sections 42.

From the foregoing description, it is apparent When a wrap develops on aroll, it will quickly become of a size so that it will contact theelectrodes, causing a short circuit whereby thebrush I42 will begrounded and the electronic relay I5I actuated to close the circuitwiththe signal I52, and the operator will be warned of the presence of awrap of yarn on the roll periphery. When such a condition exists, thewheel is revolved, without any interruption of any of the other parts,

about the shaft 58 until the roll which contains the wrap is moved to aposition along the periphery of the wheel where it is stationary andnotperiphery of the wheel where it is stationary and that upon removalof the upper section of the j guard plate 5| at the front end of themachine and removal of the bolts securing the appropriate section 42 toadjacent sections and on the central flange 44, a roll can be removedfrom the machine by sliding endwise after being released from the rearbearing. Thus, any roll can be advanced to a position along the upperhalf of the periphery of the wheel and be removed for any desiredpurpose and subsequently returned to position for future advance intooperation.

The apparatus is provided with means which will warn the operator when awrap has developed on one of the rolls 38. In the form shown (see 7Figure 4) a collector ring I48 is mounted on the surface of each of therolls 88. Each electrode I48 is grounded to the frame, and eachelectrode I58 is connected, as by a pigtail, to the collector ring Asshown in the wiring diagram (Figure 14), the circuit includes awell-knownelectronic relay I5I and a signal I52 of either the visibletype, such as a lamp. or audible type, such as a bell. The electronicrelay I5I has a terminal I53connected to the brush I42 and will-functionto close the switch I54 of the circuit, including the signal I52,whenever the terminal I53 is connected to ground. j

where the wrap is removed and simultaneously advance a number of rollsintorotating position to correspond with the number of rolls removed tostationary position. The automatic rotation of the wheel can be inaddition to warning the operator of the development of a wrap.

Referring now to Figure 15, the reference numeral I 55 designates foursegments of a rotating commutator rigidly secured to the drive end ofthe shaft 58 which is returned to ground through grounded electrodesI48. Five stationary wired brushes I58 connected in parallel cooperatewith the commutator segments I55, and each of the electrodes I58 isconnected progressively to a, commutator bar I55. A bus bar I5! isconnected tothe terminal I53 of an electronic relay I5IA. A bus barI5'IA connecting three of the wired brushes I58 leads to electronicrelay I5I. Upon the formation of a wrap, the electronic relay I5 IA willbe actuated to close the switch I54 of the circuit, which includes amotor starter whereby the motor which is operatively connected to theshaft 58 will drive said shaft. Upon advancement of any segment I beyondcontact with the wired brushes I56 associated with bus bar I51,

the circuit to the electronic relay I5IA will be opened and rotation ofshaft 58 will cease while the circuit to the electronic relay I5I isclosed, actuating the warning device. By proper positioning of the wiredbrushes I56, a roll 38 can be made to rotate out of operating positioninto a stationary position. This results because the commutator, beingattached rigidly to the shaft 58, is in approximately the same angularposition as 1 that of the wrapping roll and will move with this roll toa positionselected out of operating position.

The electrodes I48 and I58 are mounted at a fixed spaced distancerelative to the periphery of the respective roll with which theycooperate and in a manner which will permit the electrodes to be pushedaway from the roll, and, after the force pushing the electrodes has beenreleased, the electrodes will return to their original position.

Thus, when a wrap develops on a roll, it will rapidly increase indiameter and engage the electrodes which will be pushed in a directionaway from the roll. Upon removal of the wrap as herein described, theelectrodes will be restored to their original position. I

Each of the electrodes I48 and I58 is of identical construction andextends over the entire width ofthe roll. As shown in Figure'l, eachelectrode is provided with an arm at each end thereof which carries aboss I60 through which a shaft I62 extends. A taper pin I63 passingthroughaligned holes in the boss I60 and the shaft I62 secures the shaftin the respective boss.

The shafts I62 which carry the electrodes I56 are formed of a suitablenon-conductive material. The shafts I 62 which carry the groundedelectrodes I48 can be formed of any appropriate material, eitherconductive or non-conductive. As shown in Figure 7, a pigtail I65,connected at one end thereof to the electrode, is connected at the otherend thereof either to the ground or to the.

collector ring, depending on which pair of electrodes are mounted on therespective shaft I62.

One end of each individual shaft I62 (see Figure '7) is rotatablymounted in a long sleeve I64 appropriately mounted in the apparatus.short bushing I10, formed of, for example, a phenolformaldehydecondensation product with a fibrous binder, is positionedintermediate the sleeve I64 and adjacent the end of the shaft I62. Theend of the shaft I62 isprovided with a chisel point depression in whicha chisel point I80 is normally seated. The chisel point is formed at thebottom of a cup I84 which is slidably positioned in the sleeve I64. Akey I88 between the cup I84 and the sleeve I64 prevents backlash. Aspring I90 is positioned in the cup and is maintained therein by aflanged cap I94, threadedly secured in the interior of the sleeve I64.

From the foregoing description of the electrode bearing, it is manifestthat, when an electrode'is moved by any force whatsoever away from theroll, the shaft I62 will be rotated. Upon rotation of the shaft I62, thechisel point I80 will ride to the left in Figure 7, compressing thespring I90. Upon release of the force moving the electrode, the chiselpoint I80 will ride to the right in Figure '7, thus rotating the shaftto its original position. I

The electrode can be positioned to any fixed distance relative to theperiphery of the roll by rotation of the shaft I62 to the position,required. Thereafter, the chisel point I80 is positioned in thedepression and secured therein under the spring tension.

Even though the electrode shaft I62 is noml- Preferably, means are alsoprovided to scavenge the electrode shaft bearing of moisture-filled airwhich might cause corrosion. In the form shown, this is obtained bycontinuously feeding compressed air, supplied in any convenient manner,at the operators end of the apparatus through a drilled passage 20Iextending in the shaft. The drilled passage communicates through a port202 with a passage 263 which, in turn; is connected to an outlet pipe204.

The electrode bearing at the opposite end of the shaft is substantiallyidentical with that hereinbefore described except that the spring and.

chisel point construction are omitted. 7

As previously mentioned, each shaft I62 carries a pair of electrodes I48or a pair of electrodes I50.

In the construction shown in Figure 3, both of the 8 electrodes carriedby a single electrode shaft I62 do not cooperate with one roll, but theelectrodes on one shaft cooperate with adjacent rolls.

The rolls are constructed from materials which are resistant to thetreating solutions to which the yarn was subjected prior to transfer. Inthe case of viscose yarns, the elements of the roll should beconstructed of a material which is resistant to water, dilute acids,complex inorganic sulfur oompoun$, and mineral salt solutions.

Examples of such construction materials are hard rubber, stainlesssteel, plastics. glass, porcelain, enameled steel; rubber covered steel.etc.

Several illustrative embodiments of rolls which can be used are shown inFigures 8 to 13 inclusive. Referring now to Figure 8, the roll thereinshown comprises a tubular steel body member 250 which is secured at eachend thereof, as by welding, to end pieces 252. Each end piece isprovided with a central hub 254. in which a shaft (not shown) ismounted. The roll is secured to the shaft in any appropriate manner, asby a set screw passing through the holes 256 in the hubs 254. Thetubular member 250 is formed with spaced rounded upward projections 258which extend across the entire Width of the roll. A rubber covering 260extends over the entire peripheral wall of the tubular member 250 andforms a fluted roll in which the yarn-contacting surface is rubber.

Figure 10 discloses a fluted roll 270.

Figure 12 discloses a roll 200 in which the periphery of the roll isprovided with a plurality of spaced grooves 282. The top corners of thegrooves are rounded and in each of the grooves a glass rod 284 ispositioned. The glass rods are secured in place by bands 286.

In operation, a plurality of wet viscose rayon yarns, in the form of awarp sheet I0, are withdrawn by the rolls I4, I6 and I8 and are fed sothat the yarns will be delivered to a roll 30 adjacent the top of thetransfer apparatus. While the yarn is being delivered thereto, the wheelis stationary, i. e. not being revolved by shaft 50. However, due to thebelt drive, five of the rolls 30 in the upper half of the wheel arebeing rotated about their shafts 32 while the three rolls in the lowerhalf of the wheel are stationary. The rotation of the roll on which theyarn is received advances it to the rotating roll infront thereof.

The advancing of the yarn from one roll 30 to the next roll 30 iscontinued until it has been advanced .to a roll 30 which has a point onthe periphery thereof from which a tangent is perpendicular to thefloor. When the yarn reaches this point, the roll discharges the yarnand it descends in a vertical path to the collection device. The yarn isdischarged at a discharge point by reason of the flute being rapidlywithdrawn from the yarn and the force of gravity on the free-fallingyarn.

During the above operation, the bottom three rolls remain stationary.When a wrap develops on one of the rotating rolls 30 which advances theyarn .through the apparatus, it will rapidly build up and engage theelectrodes, which will in turn actuate the electronic relay and indicatethat a wrap has developed. At this time, the shaft 50 is rotated at arelatively low rate of speed, such as, for example, 4 R. P. M.

Rotation of the shaft 50, as mentioned, will revolve the wheel and itwill be stopped when the roll on which the wrap developed is advanced toa position along the periphery of the wheel where it is not driven. bythe belt drive and is stationary.

the rotation of the'wheel about the shaft 50, the

transfer of the yarn. was not interrupted- As soon as one roll 30 wasremoved out of cooper-.

ative relationship with the belt 12, another roll was advanced intoposition where .it was driven by the belt drive so that, at all times inthe construction shown, five rolls were being continuously rotated abouttheir respective axes to ad vance the yarn through the apparatus to thedischarge point.

The source of power for driving the shaft (not shown) can be agear-reducer motor combination which is switched on and off to producethe de sired part of a revolution of the unit. Any clutch or othermomentary engaging device coupled to a constantly rotating shaft of thecorrect speed can also be used. A magnetic brake for quickly stoppingcan be used so long as there is insufiicient friction in the unit tobring it .to rest when the power is disconnected.

The individual fluted rolls 30 can be operated to rovide a surfacevelocity of 1,000" to 20,000" or higher per minute.

For 1100-denier yarn, the yarn tension at the input may vary up to ahigh value of 50I rams. The oncoming tension level depends on thedifference in speed between the yarn and the trans fer rolls.Thoughslippage is not critical, best results are obtained when there isfrom 2% to 5% slippage between the rolls and the yarn.

In the construction shown, wherein the assembiy contains eight rolls,five of which are driven, the yarn should enter the unit so that it willcontact at least four of the rotating rolls from the point of entranceto the point of discharge.

With yarn of 1100-denier, the free-fall distance from the dischargepoint of the yarn to the collecting receiver must be at least 27",although it is desirable that this free-fall distance be at v least 40".

The invention is particularly suitable with the transfer of yarns of a.denier above 500, such as 1100, 2200, etc. However, the invention can beemployed to transfer yarns of deniers less than 500, such as 250, 150,etc. In general, the lower the denier, the greater the free-falldistance. Thus, with yarns below 500 denier, the free-fall distance mustbe greater than 40", The precise free-fall distance for any particulardenier can be obtained by xperiment.

The moisture content of the yarn is not critical. However, for bestresults the yarn should be soft and pliable, such as is the conditionwhen viscose yarn is wet with 200% to 600% of water.

The invention is particularly suitable With-V15? cose rayon tire cordyarn but can be used, in general, for the transfer of yarn from apositive tension level to a collection device at substantially zerotension level or for the transfer of yarn for any purpose whatsoever.

Though in the embodiment described the squirrel cage assembly consistsof eight rolls, the invention is not restricted to such number of rolls.

Transfer mechanisms wherein the squirrel cage assembly contains sixrolls 'can be employed. When the apparatus contains six rolls, the fourrolls in the upper part of the wheel will be driven and the yarn shouldbe fed therein so that it will be conveyed by at least three of the fourdriven rolls to the point of discharge.

In place of fluted rolls, mechanisms, including transfer belts andchains of the type disclosed in the co-pending application of Edward S.Balthrop, Jr., Serial No, 677,890, filed June 19,

- as set forth in the appended claims.

I claim: 1. In an apparatus for simultaneously transferring a pluralityof yarns arranged in a warp sheet to a collection device positioned at aspaced distance therebeneath, a rotatable wheel having a plurality ofyarn-supporting means 'rotatably mounted in spaced relationship on theperiphery thereof, means to continuously rotate a predetermined numberof said yam-supporting means including those which receive and advancethe yarns to discharge position on one of said yarn supporting meanswhile the remaining yarnsupporting means are stationary, and means torotate said wheel to dispose a yarn-supporting means into stationaryposition and simultaneously advance a previously stationaryyarn-supporting means into position where it is rotated. 2. In anapparatus for simultaneously transferring a plurality of yarns arrangedin a warp sheet to a collection device positioned at a spaced distancetherebeneath, a rotatable wheel having a plurality of yarn-supportingmeans rotatabiy mounted in spaced relationship on the periphery thereof,means to continuously rotate a predetermined number of saidyarn-supporting means including those which receive and advance theyarns to discharge position on one of said yarnsupporting means whilethe remaining yarn-supporting means are stationary, means cooperatingwith each of said yarn-supporting means to indicate when a wrap of yarndevelops on the respective rotating yarn-supporting means, and means torotate said wheel to dispose the yarnsupporting means on which the wrapdevelops into position where it is stationary and simultaneously advancea number of yarn-supporting means intorotating position to correspondwith the number of yam-supporting means removed to stationary position.

3.'In an apparatus for simultaneously transferring a plurality .of yarnsarranged in a warp sheet to a collection device positioned at a spaceddistance therebeneath, a-rotatable wheel having a plurality ofyarn-supporting means rotatably mounted in spaced relationship on theperiphery thereof, means to continuously rotate a, predetermined numberof said yarn-supporting means including'those which receive and advancethe yarns to discharge position'on one of said yarnsupporting meanswhile the remaining yarn-supporting means are stationary, means'torotate said wheel to position the yarn-supporting means on which a wrapdevelops into position where it is stationary and simultaneously advancea number of yarn-supporting means into rotating positi-on to correspondwith the number of yarn-supporting means removed to stationary position,

and means actuating the means to rotate said plurality ofyarn-supporting means rotatably mounted in spaced relationship on theperiphery thereof, means to continuously rotate a predetermined numberof said yarn-supportin means including those which receive and advancethe yarn to discharge position on one of said yarnsupporting means whiletheremaining yarn-supportin means are stationary, means to rotate saidwheel to dispose a yarn-supporting means on which a wrap develops intoposition where it is stationary and simultaneously advance a number ofyarn-supporting means into rotating position to correspond with thenumber of yarnsupporting means removed to stationary position, a pair ofelectrodes cooperating with each of said yarn-supporting means andadapted to be engaged by the yarn of a wrap which develops on therespective yarn-supporting means, and means electrically connected tosaid electrodes to actuate a warning signal when the yarn on anyyarn-supporting means engages said electrodes.

5. In an apparatus for simultaneously transferring a plurality of yarnsarranged in a warp sheet to a collection device positioned at a spaceddistance therefrom, a rotatable wheel having a plurality ofyarn-supporting means rotatably mounted in spaced relationship on theperiphery thereof, means to continuously rotate a predetermined numberof said yarn-supporting means including those which receive and advancethe yarn to discharge position on one of said yarnsupporting means whilethe remaining yarnsupporting means are stationary, means to rotate saidwheel to dispose a yarn-supporting means on which a wrap develops intoposition where it is stationary and simultaneously advance a number ofyam-supporting means into rotating position to correspond with thenumber of yarnsupporting means removed to stationary position, a, pairof electrodes cooperating with each of said yarn-supporting means andadapted to be engaged by the yarn of a wrap which develops on -therespective yarn-supporting means, and means electrically connected tosaid electrodes to actuate the means to rotate said wheel when the yarnon any yarn-supporting means engages said electrodes.

6. In an apparatus for simultaneously transferring a, plurality of yarnsarranged in a warp sheet to a collection device positioned at a spaceddistance therefrom, a rotatable wheel having a plurality ofyarn-supporting means rotatably mounted in spaced relationship on theperiphery thereof, means to continuously rotate a predetermined numberof said yarn-supporting means including those which receive and advancethe yarn to discharge position on one of said yamsupporting means whilethe remaining yarn-supporting means are stationary, means to rotate saidwheel to dispose a yam-supporting means on which a wrap develops intoposition where it is stationary and simultaneously advance a number ofyarnesupporting means into rotating position to correspond with thenumber of yamsupporting means removed to stationary position, a pair ofelectrodes cooperating with each of said yarn-supporting means andadapted to be engaged by the yarn of a wrap which develops on therespective yarn-supporting means, and means electrically connected tosaid electrodes to actuate a warning signal and the means to rotate saidwheelwhen the yarn on any yarn-supporting meansv engages saidelectrodes.

7. In an apparatus for simultaneously transferring a pluralitybf yarnsarranged in a warp i2 sheet to a collection device positioned at aspaced distance therefrom, a rotatable wheel having a plurality ofyarn-supporting means rotatably mounted in spaced relationship on theperiphery thereof, means to continuously rotate a predetermined numberof said yarn-supporting means including those which receive and advancethe yarn to discharge position on one of said yarnsupporting means whilethe remaining yarnsupporting means are stationary, means to rotate saidwheel to dispose a yarn-supporting means on which a wrap develops intoposition where it is stationary and simultaneously advance a number ofyarn-supporting means into rotating position to correspond with thenumber of yarn-supporting means removed to stationary position, a pairof electrodes'cooperating with each of said yarn-supporting means andadapted to be engaged by the yarn of a wrap which develops on therespective yarn-supporting means, each pair of electrodes being mountedon a shaft, means cooperating with said shaft to permit it to be rotatedin a direction so that said electrodes when engaged by a wrap will bemoved awayfrom said yarn-supporting means and re-' stored to originalposition upon removal of said wrap, and means electrically connected tosaid electrodes to actuate a warning signal when the yarn on anyyarn-supporting means engages said electrodes.

8. In an apparatus for simultaneously transferring a plurality of yarnsarranged in a warp sheet to a collection device positioned at a spaceddistance therefrom, a rotatable wheel having a plurality ofyarn-supporting means rotatably mounted in spaced relationship on theperiphery thereof, means to continuously rotate a predetermined numberof said yarn-supporting means including those which receive and advancethe yarn to discharge position on one of said yarn-supporting meanswhile the remaining yarn-supporting means are stationary, means torotate said wheel to dispose a yarn-supporting means on which a wrapdevelops into position where it is stationary and simultaneously advancea number of yarn-supporting means into rotating position to correspondwith the number of yarn-supporting means removed to stationary position,a, pair of electrodes cooperating with each of said yarnsupporting meansand adapted to be engaged by the yarn of a wrap which develops on therespective yarn-supporting means, each pair of electrodes being mountedon a shaft, means cooperating with said shaft to permit it to be rotatedin a, direction so that said electrodes when engaged by a wrap will bemoved away from said yarnsupporting means and restoredto originalposition upon removal of said wrap, and means electrically connected tosaid electrodes to actuate the means to rotate said wheel when the yarnon any yam-supporting means engages said electrodes.

9. In an apparatus for simultaneously transferring a. plurality of yarnsarranged in a warp sheet to a collection device positioned at a spaceddistance therefrom, a rotatable wheel having a plurality ofyarn-supporting means rotatably mounted in spaced relationship on theperiphery thereof, means to continuously rotate a predetermined numberof said yam-supporting means 13 which a wrap develops into positionwhere it is stationary and simultaneously advance a number ofyarn-supporting means into rotating position to correspond with thenumber of yarn-sup orting means removed to stationary position,- a pairof electrodes cooperating with each of said yarnsupporting means andadapted to be engaged by the yarn of a wrap which develops on therespective yarn-supporting means, each pair of electrodes being mountedon a shaft, means cooperating with said shaft to permit it to be rotatedin a direction so that said electrodes when engaged by a wrap will bemoved away from said yarnsupporting means and restored to originalposition upon removal of said wrap, and means electrically connected tosaid electrodes to actuate'a warning signal and the means to rotate saidwheel when the yarn on any yarn-supporting means engages saidelectrodes.

10. In an apparatus for simultaneously transferring a plurality of yarnsarranged in a warp sheet to a collection device positioned at a spaceddistance therefrom, a rotatable wheel having a plurality of fluted rollsrotatably mounted in spaced relationship on the periphery thereof,

, means to continuously rotate a predetermined number of said flutedrolls including those which receive and advance the yarn to dischargeposition on one of said fluted rolls while the remaining fluted rollsare stationary, means to rotate said wheel to dispose a fluted roll onwhich a wrap develops into position where it is stationary andsimultaneously advance a number of fluted rolls into rotating positionto correspond with the number of fluted rolls removed to stationaryposition, a pair of electrodes cooperating with each of i said flutedrolls and adapted to be engaged by the yarn of a wrap which develops onthe respective fluted roll, and means electrically connected to saidelectrodes to actuate a warning signal when the yarn on any fluted rollengages said electrodes.

11. In an apparatus for simultaneously transferring a plurality of yarnsarranged in a warp sheet to a collection device positioned at a spaceddistance therefrom, a rotatable wheel having a plurality of fluted rollsrotatably mounted in spaced relationship on the periphery thereof, meansto continuously rotate a predetermined number of said fluted rollsincluding those which receive and advance the yarn to discharge positionon one of said fluted rolls while the remaining fluted rolls arestationary, means to rotate said wheel to dispose a-fluted roll on whicha wrap develops into position where it is stationary and simultaneouslyadvance a numberof fluted rolls into rotating position to correspondwith the number of fluted rolls removed to stationary position, a pairof electrodes cooperating with each of said fluted rolls and adapted tobe engaged by the yarn of a wrap which develops on the respective flutedroll, and means electrically connected to said electrodes to actuate themeans to rotate said wheel when the yarn on any fluted roll engages saidelectrodes.

- 12. In an apparatus for simultaneously trans-- ferring a plurality ofyarns arranged in a warp sheet to a collection device positioned at aspaced distance therefrom, a rotatable wheel having a plurality offluted rolls 'rotatably mounted in ing fluted, rolls ar stationary,means to rotate said wheel to dispose a fluted roll on which a wrapdevelops into position where it is stationwith the number of flutedrolls removed to stationary position, a pair of electrodes cooperatingwith each of said fluted rolls and adapted to be engaged by the yarn ofa wrap which develops on the respective fluted roll, and meanselectrically connected to said electrodes to actuate a warning signaland the means to rotate said wheel when the yarn on any fluted rollengages said.

electrodes.

13. In an apparatus for simultaneously trans-- ferring a plurality ofyarns arranged in a warp sheet to a collection device positioned at aspaced distance therefrom, a rotatable wheel having a plurality offluted rolls rotatably mounted in spaced relationship on the peripherythereof, means to continuously rotate a predetermined number of saidfluted rolls including those which receive and advance the yarn todischarge position on one of said fluted rolls while the remainingfluted rolls are stationary, means to rotate said wheel to dispose afluted roll on which a wrap develops into position where it isstationary and simultaneously advance a number of fluted rolls intorotating position to correspond 1 with the number of fluted rollsremoved to stationary position, a pair of electrodes cooperating witheach of said fluted rolls and adapted to be engaged by the yarn of awrap which develops on the respective fluted roll, each pair ofelectrodes being mounted on a shaft, meanscooperating with said shaft topermit it to be rotated in a direction so that said electrodes whenengaged by a wrap will be moved away from said fluted rolls and restoredto original position upon removal of said wrap, and means electricallyconnected to said electrodes to actuate a warning signal when the yarnon any fluted roll engages said electrodes.

14. In an apparatus for simultaneously transferring a plurality of yarnsarranged in a warp sheet to a collection device positioned at a spaced Ition on one of said fluted rolls while the remaining fluted rolls arestationary, means to rotate.

said wheel to dispose a fluted roll on which a wrap develops intoposition where it is stationary and simultaneously advance a number offluted rolls into rotating. position to correspond with the number offluted rolls removed to stationary position, a, pair of electrodescooperate ing with each of said fluted rolls and adapted to be engagedby the yarn of a wrap which develops on the respective fluted roll, eachpair of electrodes being mountedon a shaft, means cooperating with saidshaft to permit it to be rotated in a direction so that said electrodeswhen engaged by a wrap will be moved away from said fluted rolls andrestored to original position upon removal of said wrap, and meanselectrically plurality of fluted rolls rotatably mounted in spacedrelationship on the periphery thereof, means to continuously rotate apredetermined number of said fluted rolls including those which receiveand advance th yarn to discharge position on one of said fluted rollswhile the remaining fluted rolls are stationary, means to rotate saidwheel to dispose a fluted roll on which a wrap develops into positionwhere it is stationl6 tated in a direction so that said electrodes whenengaged by a wrap will be moved away from said fluted rolls and restoredto original position upon removal of said wrap, and means electricallycon- & nected to said electrodes to actuate a warnin signal and themeans to rotate said wheel when the yarn on any fluted roll engages saidelectrodes.

MORGAN J. RARICK.

REFERENCES omen The following references are of record file oi thispatent;

UNITED STATES PATENTS in the Number Name Date 1,857,161 Alden Mar. 1,1932 2,317,747 Ewing Apr. 27, 1943

